Israeli's military said it fired back after soldiers were targeted by mortar rounds launched from the vicinity of the school.

White House spokeswoman Bernadette Meehan also said the US is "extremely concerned" that thousands of Palestinians aren't safe in designated shelters, despite being told by Israel's military to leave their homes. She also condemned those hiding weapons in UN facilities.

All of these actions, and similar ones earlier in the conflict, are inconsistent with the UN's neutrality. This violence underscores the need to achieve a cease-fire as soon as possible.